- Success Stories, Uncategorized
- Environmental Resource Assessment & Management
Assessing Contamination in Abandoned Mines

CSS supports the Environmental Protection Agency with assessing contamination within abandoned mines. There are thousands of abandoned mines throughout the western United States. Many of these mines are leaching heavy metals into nearby streams or have contaminated soils causing vegetation die off.
CSS employee owners conduct field work to assess the extent of this contamination. During field excursions, staff collect soil and water samples and characterize the extent of contamination. The team analyzes sample on site and in the laboratory for heavy metals. This information informs remediation plans for contaminated sites.
Feature image credit: Peter Robbins, Unsplash
See More CSS Insights
55 Years of Earth Day!
Since April 22, 1970 — that’s 55 years! — we’ve celebrated Earth Day to raise environmental awareness and support for environmental protection. At CSS we have a passion for the environment and through various government contracts, we work with our clients to overcome challenges to help protect this rock we call home. Below are a…
CSS Awarded Five Year Subcontract Supporting the Bureau of Engraving and Printing
For over 22 years, CSS has supported the Bureau of Engraving and Printing (BEP). Originally as a prime contractor, CSS began supporting BEP in 2002. In November 2024, a new prime contractor, Koniag, signed CSS as a major subcontractor, which enabled CSS employee owners to continue providing comprehensive environmental, occupational safety and industrial hygiene support…
Employee Owners Nominated for NOAA Gold Medal Award
Congratulations to CSS employee owners supporting NOAA’s National Centers for Coastal Ocean Science for their nomination for the NOAA Gold Medal Award! CSS employee owners have been critical members of the team charged with the rapid development of spatial models that aid in offshore wind planning in the Gulf of Mexico. The team has collected…
